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          LV04-02-AES算法-02-AES算法实现
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<details class="folding-tag" blue><summary> 点击查看使用工具及版本 </summary>
              <div class='content'>
              <table>    <tr>        <td align="center" rowspan="5">PC端开发环境</td>        <td align="center" width=150px>Windows</td>        <td align="left">Windows11</td>    </tr>    <tr>        <td align="center">Ubuntu</td>        <td align="left">Ubuntu20.04.6的64位版本</td>      </tr>    <tr>        <td align="center">VMware® Workstation 17 Pro</td>        <td align="left">17.0.0 build-20800274</td>      </tr>    <tr>        <td align="center">终端软件</td>        <td align="left">MobaXterm(Professional Edition v23.0 Build 5042 (license))</td>    </tr>    <tr>        <td align="center">Win32DiskImager</td>        <td align="left">Win32DiskImager v1.0</td>      </tr>    <tr>        <td align="center" rowspan="3">Linux开发板环境</td>        <td align="center">Linux开发板</td>        <td align="left">正点原子 i.MX6ULL Linux 阿尔法开发板</td>      </tr>    <tr>        <td align="center">uboot</td>        <td align="left">NXP官方提供的uboot，NXP提供的版本为uboot-imx-rel_imx_4.1.15_2.1.0_ga(使用的uboot版本为U-Boot 2016.03)</td>      </tr>    <tr>        <td align="center">linux内核</td>        <td align="left">linux-4.15(NXP官方提供)</td>      </tr></table>
              </div>
            </details>

<details class="folding-tag" blue><summary> 点击查看本文参考资料 </summary>
              <div class='content'>
              <ul><li>通用</li></ul><table>    <tr><td align="center">参考资料  </td><td align="center">相关链接</td></tr>    <tr><td align="left" rowspan=2>FIPS197</td><td align="left"><a href="https://csrc.nist.gov/files/pubs/fips/197/final/docs/fips-197.pdf" target="_blank">高级加密标准AES-FIPS197英文版<i class="fa fa-external-link-alt"></i> </a></td></tr>    <tr><td align="left"><a href="https://www.masol7.com/wp-content/uploads/2023/03/高级加密标准AES-FIPS197中文版.pdf" target="_blank">高级加密标准AES-FIPS197中文版<i class="fa fa-external-link-alt"></i> </a></td></tr></table>
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            </details>

<details class="folding-tag" blue><summary> 点击查看相关文件下载 </summary>
              <div class='content'>
              <table>    <tr><td align="left"><a href="" target="_blank">---</a></td><td align="left">---</td></tr></table>
              </div>
            </details>

<h1 id="一、OpenSSL简介"><a href="#一、OpenSSL简介" class="headerlink" title="一、OpenSSL简介"></a><font size=3>一、OpenSSL简介</font></h1><p>AES这种加密算法在网上都是有多种开源库的，C语言版本、Java版本等等。我使用的是嵌入式平台，所以这里学习一下C语言平台AES加解密实现。</p>
<h2 id="1-OpenSSL是什么"><a href="#1-OpenSSL是什么" class="headerlink" title="1. OpenSSL是什么"></a><font size=3>1. OpenSSL是什么</font></h2><p>首先来了解一下<a target="_blank" rel="noopener" href="https://www.openssl.org/">OpenSSL</a>，在<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/%E8%AE%A1%E7%AE%97%E6%9C%BA%E7%BD%91%E7%BB%9C">计算机网络</a>上，<strong>OpenSSL</strong>是一个<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/%E9%96%8B%E6%94%BE%E5%8E%9F%E5%A7%8B%E7%A2%BC">开放原始码</a>的<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/%E8%BB%9F%E9%AB%94">软体</a><a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/%E5%87%BD%E5%BC%8F%E5%BA%AB">函式库</a>套件，应用程式可以使用这个套件来进行安全通讯，避免窃听，同时确认另一端连线者的身份。这个套件广泛被应用在网际网路的网页伺服器上。其主要<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/%E5%87%BD%E5%BC%8F%E5%BA%AB">函式库</a>是以<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/C%E8%AA%9E%E8%A8%80">C语言</a>所写成，实作了基本的<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/%E5%8A%A0%E5%AF%86">加密</a>功能，实作了<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/%E5%82%B3%E8%BC%B8%E5%B1%A4%E5%AE%89%E5%85%A8%E5%8D%94%E8%AD%B0">SSL与TLS</a>协定。OpenSSL可以运行在<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/OpenVMS">OpenVMS</a>、 <a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/Microsoft_Windows">Microsoft Windows</a>以及绝大多数<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/%E7%B1%BBUnix">类Unix</a>作业系统上（包括<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/Solaris">Solaris</a>，<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/Linux">Linux</a>，<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/Mac_OS_X">Mac OS X</a>与各种版本的开放原始码<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/BSD">BSD</a>作业系统）。</p>
<p>OpenSSL计划在1998年开始，其目标是发明一套自由的加密工具，在网际网路上使用。OpenSSL以Eric Young以及Tim Hudson两人开发的<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/SSLeay">SSLeay</a>为基础，随著两人前往<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/RSA_%E5%AE%89%E5%85%A8">RSA公司</a>任职，SSLeay在1998年12月停止开发。因此在1998年12月，社群另外分支出OpenSSL，继续开发下去。</p>
<h2 id="2-支持哪些算法？"><a href="#2-支持哪些算法？" class="headerlink" title="2. 支持哪些算法？"></a><font size=3>2. 支持哪些算法？</font></h2><p>OpenSSL支持许多不同的加密算法：</p>
<ul>
<li><p><a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/%E5%8A%A0%E5%AF%86">加密</a></p>
<p><a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/%E9%AB%98%E7%BA%A7%E5%8A%A0%E5%AF%86%E6%A0%87%E5%87%86">AES</a>、<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/Blowfish_(%E5%AF%86%E7%A0%81%E5%AD%A6)">Blowfish</a>、<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/Camellia">Camellia</a>、<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/Salsa20#ChaCha20">Chacha20</a>、<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/Poly1305">Poly1305</a>、SEED（英语：<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/SEED">SEED</a>）、CAST-128（英语：<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/CAST-128">CAST-128</a>）、<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/%E8%B3%87%E6%96%99%E5%8A%A0%E5%AF%86%E6%A8%99%E6%BA%96">DES</a>、<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/%E5%9C%8B%E9%9A%9B%E8%B3%87%E6%96%99%E5%8A%A0%E5%AF%86%E6%BC%94%E7%AE%97%E6%B3%95">IDEA</a>、RC2（英语：<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/RC2">RC2</a>）、<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/RC4">RC4</a>、<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/RC5">RC5</a>、<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/%E4%B8%89%E9%87%8D%E8%B3%87%E6%96%99%E5%8A%A0%E5%AF%86%E6%BC%94%E7%AE%97%E6%B3%95">TDES</a>、GOST 28147-89（英语：<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/GOST_(block_cipher)">GOST (block cipher)</a>）、<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/SM4">SM4</a></p>
</li>
<li><p><a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/%E5%AF%86%E7%A2%BC%E9%9B%9C%E6%B9%8A%E5%87%BD%E6%95%B8">密码杂凑函数</a></p>
<p><a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/MD5">MD5</a>、<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/MD4">MD4</a>、<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/MD2">MD2</a>、<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/SHA-1">SHA-1</a>、<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/SHA-2">SHA-2</a>、<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/SHA-3">SHA-3</a>、<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/RIPEMD-160">RIPEMD-160</a>、MDC-2（英语：<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/MDC-2">MDC-2</a>）、GOST R 34.11-94（英语：<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/GOST_(hash_function)">GOST (hash function)</a>）、<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/BLAKE#BLAKE2">BLAKE2</a>、<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/Whirlpool">Whirlpool</a>、<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/SM3">SM3</a></p>
</li>
<li><p><a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/%E5%85%AC%E5%BC%80%E5%AF%86%E9%92%A5%E5%8A%A0%E5%AF%86">公开密钥加密</a></p>
<p><a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/RSA%E5%8A%A0%E5%AF%86%E6%BC%94%E7%AE%97%E6%B3%95">RSA</a>、<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/%E6%95%B0%E5%AD%97%E7%AD%BE%E5%90%8D%E7%AE%97%E6%B3%95">DSA</a>、<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/ECDSA">ECDSA</a>、<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/ECDHE">ECDHE</a>、<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/%E8%BF%AA%E8%8F%B2-%E8%B5%AB%E7%88%BE%E6%9B%BC%E5%AF%86%E9%91%B0%E4%BA%A4%E6%8F%9B">迪菲-赫尔曼密钥交换</a>、<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/%E6%A4%AD%E5%9C%86%E6%9B%B2%E7%BA%BF%E5%AF%86%E7%A0%81%E5%AD%A6">椭圆曲线密码学</a>、<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/Curve25519">X25519</a>、Ed25519（英语：<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/EdDSA#Ed25519">EdDSA#Ed25519</a>）、X448（英语：<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/Curve448">Curve448</a>）、Ed448（英语：<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/Curve448">Curve448</a>）、GOST R 34.10-2001、<a target="_blank" rel="noopener" href="https://www.wikiwand.com/zh-hans/articles/SM2">SM2</a></p>
</li>
</ul>
<h2 id="3-源码在哪？"><a href="#3-源码在哪？" class="headerlink" title="3. 源码在哪？"></a><font size=3>3. 源码在哪？</font></h2><p>官网在这里：<a target="_blank" rel="noopener" href="https://www.openssl.org/">openssl.org</a></p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/04%E9%9F%B3%E8%A7%86%E9%A2%91/LV04-%E5%8A%A0%E5%AF%86%E4%B8%8E%E8%A7%A3%E5%AF%86/LV04-02-AES%E7%AE%97%E6%B3%95-02-AES%E7%AE%97%E6%B3%95%E5%AE%9E%E7%8E%B0/img/image-20240824065117057.png" alt="image-20240824065117057" style="zoom:50%;" />

<p>我们点开第一个OpenSSL Library，可以找到源码仓库：</p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/04%E9%9F%B3%E8%A7%86%E9%A2%91/LV04-%E5%8A%A0%E5%AF%86%E4%B8%8E%E8%A7%A3%E5%AF%86/LV04-02-AES%E7%AE%97%E6%B3%95-02-AES%E7%AE%97%E6%B3%95%E5%AE%9E%E7%8E%B0/img/image-20240824065313650.png" alt="image-20240824065313650" style="zoom:50%;" />

<p>然后就可以来到github源码仓库了：<a target="_blank" rel="noopener" href="https://github.com/openssl/openssl/">openssl&#x2F;openssl: TLS&#x2F;SSL and crypto library (github.com)</a>，仓库里面有多种加密的源码，我们所需要的AES算法源码在这里：</p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/04%E9%9F%B3%E8%A7%86%E9%A2%91/LV04-%E5%8A%A0%E5%AF%86%E4%B8%8E%E8%A7%A3%E5%AF%86/LV04-02-AES%E7%AE%97%E6%B3%95-02-AES%E7%AE%97%E6%B3%95%E5%AE%9E%E7%8E%B0/img/image-20240824065529429.png" alt="image-20240824065529429" style="zoom:50%;" />

<p>核心主要是这个aes_core.c文件。还有一些ecb、ofb等命名的文件，这些都是不同的加密模式，我这里就用了最基本的ecb模式，也就是直接使用aes_core.c中的函数即可。</p>
<h2 id="二、使用实例"><a href="#二、使用实例" class="headerlink" title="二、使用实例"></a><font size=3>二、使用实例</font></h2><p>这里就不做具体分析了，详细的可以看这个仓库：<a target="_blank" rel="noopener" href="https://gitee.com/sumumm/openssl">openssl: openssl库学习 (gitee.com)</a></p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/04%E9%9F%B3%E8%A7%86%E9%A2%91/LV04-%E5%8A%A0%E5%AF%86%E4%B8%8E%E8%A7%A3%E5%AF%86/LV04-02-AES%E7%AE%97%E6%B3%95-02-AES%E7%AE%97%E6%B3%95%E5%AE%9E%E7%8E%B0/img/image-20240825134120980.png" alt="image-20240825134120980" style="zoom:50%;" />

<p>这个demo主要是用来解密和加密WAV格式的音频文件。</p>

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    <p><span>文章标题:</span><a href="/post/20cd4467.html">LV04-02-AES算法-02-AES算法实现</a></p>
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